Vetpen Starter Kit for Dogs & Cats, 0.5 IU - 8 IU in 1/2 unit increments
Strength:
Strength:
Never miss a dose with easy refills
Skip, change, or cancel anytime
No interest if paid in full in 6 months. .
Shipping for Prescription Medications
Our pharmacy prepares and ships prescription medications separately to ensure proper handling.
Most prescriptions are delivered within 3-5 days.About This Item
Details
- VETPEN Starter Kit for Dogs & Cats comes with a VETPEN automatic insulin delivery pen, a travel pouch, a needle remover, a dose selector adaptor, a release button extension and instructions for accurate administration.
- Use VETPEN only with VETSULIN 2.7 ml cartridges.
- Easy, accurate dosing
- Single-use needles
- For both dogs and cats.
- For animal use only.
Ingredients
Active Ingredients: purified porcine insulin (35% amorphous and 65% crystalline) - 40 IU, Zinc (as chloride) - 0.08 mg, Sodium acetate trihydrate - 1.36 mg, Sodium chloride - 7.0 mg, Methylparaben (preservative) - 1.0 mg.
Instructions
The initial recommended vetsulin dose is 0.5 IU insulin/kg body weight. Initially, this dose should be given once daily concurrently with, or right after a meal.
Twice daily therapy should be initiated if the duration of insulin action is determined to be inadequate. If twice daily treatment is initiated, the two doses should each be 25% less than the once daily dose required to attain an acceptable nadir. For example, if a dog receiving 20 units of vetsulin once daily has an acceptable nadir but inadequate duration of activity, the vetsulin dose should be changed to 15 units twice daily.
Store in an upright position under refrigeration at 36°F to 46°F. Do not freeze. Protect from light. The loaded VetPen can be stored on its side.
FAQ
While insulin pens have been commonly used in the management of human diabetes for some time, VetPen is the first such device designed exclusively for use in cats and dogs.
Using the same technology found in human insulin pens, VetPen:
- Is more convenient and easier to use than insulin vials and syringes
- Delivers an accurate dose consistently over time, with less chance of error
- Provides a better fit to pet owners lifestyles takes fewer steps to prepare doses once primed (air removed from cartridge) and can be used anywhere
No. VetPen must be used with specially designed 3 mL cartridges containing 2.7 mL of 40 IU/mL concentration of Vetsulin, the world's most trusted veterinary insulin, proven safe and effective for more than 25 years in hundreds of thousands of pets with diabetes.* To avoid damaging VetPen and dosing errors, cartridges containing other insulin should not be used with VetPen.
While the overall injection process is similar, VetPen allows you to select doses more accurately. With just the turn of a dial, you can select a customized dose of insulin down to 0.5 units. And, with a push of the release button, the VetPen's internal mechanism works to deliver the precise dose each and every time.
Yes. VetPen contains an insulin cartridge that allows multiple doses to be provided with minimal preparation time. When all the insulin has been used, simply remove the empty cartridge and insert a new one. Please note that sterile needles are designed for single use only and should not be reused. Tests show that VetPen lasts for at least 3,000 uses.
VetPen is designed to work optimally with 29 gauge/mm needles, which are small, thin, triple-sharpened, and specially lubricated. This equates to a lower penetration force and little to no discomfort for the pet. These are the only needles that should be used with VetPen.

Frequently bought together
- Vetsulin (porcine insulin zinc suspension) U-40 Cartridge for VetPen, 10 cartridges of 2.7-mLRated 4.6 out of 5 stars4.657Reviews$255.99 Chewy Price$255.99
- UltiCare VetRx Insulin Syringes U-40 12.7mm x 29G with 1/2 Unit Markings, 0.5-cc, 100 syringesRated 4.7 out of 5 stars4.71.3KReviews$23.95 Chewy Price$23.95$25.95 List Price$25.95$22.75 Autoship Price$22.75Promo, Save 20% On First Rx Order With Code: RX20 +1 deal
- Prescription Item
Customers Mention
Ease of Use
Effectiveness
Ingredients
Long-Term Benefits
14 Customer Reviews
Seems a pricey way to go
Having cared for 2 diabetic cats my suggestion would be: get your prescription for Insulin. I used Lantus (longer acting insulin)/ go to your local pharmacy and
Having cared for 2 diabetic cats my suggestion would be: get your prescription for Insulin. I used Lantus (longer acting insulin)/ go to your local pharmacy and purchase a Lantus pen (Pharmacists will usually sell individual insulin pens out of the box of 5) Get some U100 insulin syringes marked in half units and ultra fine needles. Fill a syringe with the prescribed amount from the pen. Insert the syringe needle into the foam end of the pen. Then administer the injection. Importantly as I have told all pet owners it is most beneficial to learn how to test your pets BG at home! Its much more beneficial to test at home as vet trips can be stressful and raise BG readings often causing to inaccurate dosing. Sidebar....When your pet is first diagnosed change their diet. No kibble for cats (too many carbs) feed a high protein low carb wet food for a week and retest the BG before determining dosing. Often a better diet will result in lower readings meaning a lower insulin dose. Ultimately, we hope the pet with cleaner diet and insulin, testing and accurate dosing they will go into remission or OTJ (Off the juice). My current cat Oliver has been in remission for 6 years and is doing well.
Not for us
I can see that this might be a helpful tool for someone who can't use a syringe for some reason, but we got it hoping it would make the injections faster. You actually
I can see that this might be a helpful tool for someone who can't use a syringe for some reason, but we got it hoping it would make the injections faster. You actually have to leave the needle in for 5 extra seconds to deliver the dose. That was the opposite of what we needed. I wish I would have understood that ahead of time because it was very expensive
Not worth it
Don’t mistake this for a spring loaded inject, you still do the injection, all this pen does is push the plunger for you
Don’t mistake this for a spring loaded inject, you still do the injection, all this pen does is push the plunger for you
Very nice and easy to use.
I am so happy we were able to buy this for our boy Doug who is diabetic. It’s easy to use and works great. It is very costly but thankfully our pet insurance covers
I am so happy we were able to buy this for our boy Doug who is diabetic. It’s easy to use and works great. It is very costly but thankfully our pet insurance covers 90% of it and we pay the other 10%. But I would recommend Vet Pen if it’s in your budget.
pen seems inaccurate....maybe not for small dogs
we bought this hoping it would assuage are dogs anxiety with 12hr injections. I WISH I COULD RETURN IT. I imagine it cab helpful with larger dogs dogs less reactive
we bought this hoping it would assuage are dogs anxiety with 12hr injections. I WISH I COULD RETURN IT. I imagine it cab helpful with larger dogs dogs less reactive to injection. I tried several times. kept it in place for the suggested timeout every time insulin was just leaking out the needle. It could be some user error and related to having a "difficult" dog to inject, but I should not have to hold him in place for a minute. with the length I do find it also difficult to use on small dogs given a subcutaneous injection.
Life saver...literally!
Our aging Cairn Terrier was diagnosed with diabetes about 5-6 months ago and she really struggled with the insulin vial & U-40 syringe method. Our vet wasn't familiar
Our aging Cairn Terrier was diagnosed with diabetes about 5-6 months ago and she really struggled with the insulin vial & U-40 syringe method. Our vet wasn't familiar with the VetPen, but she had us get it, bring it in, and then monitor our dog on it. I honestly think it delivers better than the standard vial and the needle is smaller than the U-40, so there isn't as much pain involved. We are such believers that we bought an extra pen just to have on hand. If you have a diabetic animal, this is the way to go.
Delicate and poorly made
178 dollar for something so fragile. One I can admit it slipped from my hands and that's on me. The second one I bought lasted barely a couple weeks. The lid to
178 dollar for something so fragile. One I can admit it slipped from my hands and that's on me. The second one I bought lasted barely a couple weeks. The lid to the pen was loose and the thing slipped right out and broke again. For the record, I had the lid completely on. It was loose no matter what. Now I have to shell out even more money in this bad economy. Sadly, there is no alternative to this pen and no seemingly possible way to get replacement parts.
Not for us
The "click" noise is definitely not the sound of a pen. It's much louder. If your animal startles easily or doesn't like loud noises, this is not for you.
The "click" noise is definitely not the sound of a pen. It's much louder. If your animal startles easily or doesn't like loud noises, this is not for you.
Good investment
I was weary because of the price but overall I really like the pen version. Less needle biohazard and waste. I don't waste any vials because expiration like I
I was weary because of the price but overall I really like the pen version. Less needle biohazard and waste. I don't waste any vials because expiration like I do with the 10ml vials. My cat uses 3u twice a day. There's little difference giving the insulin for me as my cat isn't one to try to run away. He doesn't care if I poke him. Just note, you do have to wait about 5 seconds after injection before removing the needle to allow it all to be deposited. I give it 8-10secd. There may be differences in how fast it comes out as I have removed it too soon. Also, I tried to have my dad learn and it was difficult for him to use but I suspect he would have the same if not more difficulties with the syringe. 1 thing I didn't like was the glass vials are not drop proof. I drop one and it broke so I wasted a whole vial. There tends to be a few units left in the vial when it finished. I used my old syringes to draw up his dinner dose. The tiny blue zipper case is kinda useless because it's too small.
the greatest
This is my third purchase of the vetpen, I absolutely love it. It would be even better if they would make .05 dose in the 16 units.
This is my third purchase of the vetpen, I absolutely love it. It would be even better if they would make .05 dose in the 16 units.



